Movable transmission mechanism and special-shaped hole machining equipment comprising same

The utility model aims to provide a movable transmission mechanism which is simple and efficient in structure, stable and reliable in work and capable of outputting rotating action from a fixed axis rotating component to a movable axis rotating component, and special-shaped hole machining equipment comprising the movable transmission mechanism. The movable transmission mechanism comprises a first moving component serving as a driving piece to input rotating action, a second moving component serving as a driven piece to output rotating action and a movable connecting structure arranged between the first moving component and the second moving component. The first moving component and the second moving component can rotate around respective central axes, the central axes of the first moving component and the second moving component are parallel to each other, and the movable connecting structure can be used for connecting the first moving component and the second moving component under the condition that the cen